#!/bin/sh

# Performs a lua-language-server check on all files.
# luals-out/check.json will be produced on any issues, returning 1.
# Outputs only check.json to stdout, all other messages to stderr, to allow jq etc.

VER_LLS="3.7.3"

DIR_SRC="${PWD}"
DIR_OUT="${DIR_SRC}/luals-out"
DIR_LLS="/tmp/lls"

# clear output
rm -rf "${DIR_OUT}"
mkdir "${DIR_OUT}"

if [ ! -d "${DIR_LLS}" ]; then
	# download lua-language-server binaries
	mkdir -p "${DIR_LLS}"
	curl -L "https://github.com/LuaLS/lua-language-server/releases/download/${VER_LLS}/lua-language-server-${VER_LLS}-linux-x64.tar.gz" | tar zx --directory "${DIR_LLS}"
fi

# execute from within the lua-language-server directory as it expects specific file locations
OUT=$("${DIR_LLS}/bin/lua-language-server" --checklevel=Information --check "${DIR_SRC}" --logpath="${DIR_OUT}" --loglevel=error)
RC=$?

echo "${OUT}" >&2

if [ $RC -ne 0 ]; then
	echo "failed with RC=$RC"
	exit $RC
fi

# any output is a fail
case "${OUT}" in
	*Diagnosis\ complete*)
		if [ -f "${DIR_OUT}/check.json" ]; then
			cat "${DIR_OUT}/check.json"
			exit 1
		else
			exit 0
		fi
		;;
	*)
		exit 1
		;;
esac